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  1. #1

    * Server crash due to some weird error: Invalid alignment/Bus error occurred

    Hey guys my server has been running fine until recently.
    Can someone tell me what happen and what should i do?

    Code:
    Feb 16 17:12:05 ns26757 kernel: grsec: From 58.8.xx.35: Invalid alignment/Bus error occurred at 000000300000669c in /usr/sbin/httpd[httpd:26268] uid/euid:48/48 gid/egid:48/48, parent /usr/sbin/httpd[httpd:9409] uid/euid:0/0 gid/egid:0/0
    Feb 16 17:12:30 ns26757 kernel: grsec: From 78.12.xx.33: Invalid alignment/Bus error occurred at 00007f1dabfa4000 in /usr/sbin/httpd[httpd:14268] uid/euid:48/48 gid/egid:48/48, parent /usr/sbin/httpd[httpd:9409] uid/euid:0/0 gid/egid:0/0
    Feb 16 17:12:55 ns26757 kernel: grsec: more alerts, logging disabled for 10 seconds
    Feb 16 17:15:44 ns26757 kernel: grsec: From 202.156.xx.239: Invalid alignment/Bus error occurred at 00007f1dabfa2000 in /usr/sbin/httpd[httpd:9530] uid/euid:48/48 gid/egid:48/48, parent /usr/sbin/httpd[httpd:9409] uid/euid:0/0 gid/egid:0/0
    Feb 16 17:16:02 ns26757 kernel: grsec: From 202.156.xx.239: Invalid alignment/Bus error occurred at 000000300000253a in /usr/sbin/httpd[httpd:9530] uid/euid:48/48 gid/egid:48/48, parent /usr/sbin/httpd[httpd:9409] uid/euid:0/0 gid/egid:0/0
    Feb 16 17:18:33 ns26757 kernel: grsec: From 78.12.xx.33: Invalid alignment/Bus error occurred at 00007f1dabfa2000 in /usr/sbin/httpd[httpd:26756] uid/euid:48/48 gid/egid:48/48, parent /usr/sbin/httpd[httpd:9409] uid/euid:0/0 gid/egid:0/0
    Feb 16 17:19:36 ns26757 kernel: grsec: From 78.12.xx.33: Invalid alignment/Bus error occurred at 0000003000006884 in /usr/sbin/httpd[httpd:26756] uid/euid:48/48 gid/egid:48/48, parent /usr/sbin/httpd[httpd:9409] uid/euid:0/0 gid/egid:0/0
    
    [Wed Feb 16 17:11:13 2011] [notice] child pid 25059 exit signal Bus error (7)
    [Wed Feb 16 17:11:13 2011] [notice] child pid 25063 exit signal Bus error (7)
    [Wed Feb 16 17:11:13 2011] [notice] child pid 26022 exit signal Bus error (7)
    [Wed Feb 16 17:11:13 2011] [notice] child pid 26268 exit signal Bus error (7)
    [Wed Feb 16 17:14:42 2011] [notice] child pid 25065 exit signal Bus error (7)
    [Wed Feb 16 17:14:42 2011] [notice] child pid 26715 exit signal Bus error (7)
    [Wed Feb 16 17:15:22 2011] [notice] child pid 9530 exit signal Bus error (7)
    [Wed Feb 16 17:18:34 2011] [notice] child pid 26756 exit signal Bus error (7)
    [Wed Feb 16 17:25:56 2011] [notice] caught SIGTERM, shutting down
    Operating system CentOS Linux 5.5
    Kernel and CPU Linux 2.6.32.2-xxxx-grs-ipv4-64 on x86_64
    Processor information
    Intel(R) Xeon(R) CPU X3360 @ 2.83GHz, 4 cores
    Real memory 7.71 GB total
    Virtual memory 1022.73 MB total

  2. #2
    Join Date
    Nov 2005
    Location
    /etc/fstab
    Posts
    1,274
    These are segmentation faults. There isn't much anyone can specifically advise you without analyzing your server. Did you try contacting some management service?
    Mellowhost - Providing High Quality Web Hosting Services since 2007
    SSD Cpanel Shared, SSD OpenVZ & KVM VPS Hosting
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  3. #3
    Join Date
    Aug 2009
    Posts
    77
    I'm just guessing, but you either hit a bug in grsec or you have a bad memory stick.

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